Ability Book and Action Bar Additions

# Added:
*  GetAbilityLocation
* GetAbilityCooldown
* UseAbility
* ClickActionBarSlot
* AbilityInSlot
* AddAbilityToActionBar
* AddItemToActionBar
* TPAFromLine
* TPAFromLineWrap

# Changed:
* Ability constants now start at 13 to allow for a single parameter to be used in some of these new functions to define whether to use the Action Bar or Ability Book.
* Shifted existing Ability Book/Action Bar functions around to top of gametab.simba